Square Root Function (Equation)
The square root function is a mathematical function that represents the principal square root of a number
The square root function is a mathematical function that represents the principal square root of a number. The square root of a number is a value that, when multiplied by itself, gives the original number.
The square root function can be represented by the equation:
f(x) = √x
In this equation, “f(x)” represents the value of the square root function for a given input, and “x” represents the input value. The output of the function, which is the square root of “x”, is denoted by the symbol (√).
For example, to find the square root of 9 using the square root function, substitute 9 for “x”:
f(9) = √9
The square root of 9 is 3, so the output of the function for an input of 9 is:
f(9) = 3
Similarly, we can find the square root of any positive number using the square root function. For example, for an input of 25:
f(25) = √25
The square root of 25 is 5, so the output of the function for an input of 25 is:
f(25) = 5
However, it is important to note that the square root function is not defined for negative numbers or complex numbers, as the square root of a negative number is not a real number.
In summary, the square root function is a mathematical function that calculates the principal square root of a given input value. It allows us to find the value that, when squared, gives the input number.
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